Purpose This study aims to examine the symmetric and asymmetric impact of external debt on inflation in Sudan from 1970 2020 within a multivariate framework by including money supply nominal effective exchange rate as additional determinants. Design/methodology/approach The authors utilize an Auto Regressive Distributed Lag (ARDL) model inflation, while is examined using Nonlinear ARDL (NARDL) ...

The study investigates the relationship between electricity trade and economic growth in South Africa. utilised time series data spanning from 1985 to 2022 collected secondary sources like Quantec. employed DF-GLS KPSS unit root, ARDL Bounds cointegration test, ECM model, Granger causality residual diagnostics tests. discovered presence of short long run negative relationships revealed unidirec...

We study the combinatorics of fully commutative elements in Coxeter groups of type H n for any n > 2. Using the results, we construct certain canonical bases for non-simply-laced generalized Temperley–Lieb algebras and show how to relate them to morphisms in the category of decorated tangles.

We address the attainability of the Hashin-Shtrikman bounds for multiphase composite materials. We demonstrate that the Hashin-Shtrikman bounds are not always attainable and give new restrictions on the attainable Hashin-Shtrikman bounds in terms of the conductivities and volume fractions of the constituent phases. New optimal microstructures are also constructed to attain the Hashin-Shtrikman ...

Purpose: The airport infrastructure plays capital importance in the development of national trade. It facilitates flow people, goods, and services more quickly. Thus, given its importance, this study seeks to analyze impact Angolan investment between 2000 – 2020.Design/methodology/approach: article presents results quantitative qualitative research, based on narrative review output Auto-Regress...